RTTarget-32 CPU Exception: 000E Error code: 0004

Hardware setup: I am using a Quatech ESC-100 card to read in serial data from several encoder boards.

Software setup: I'm running a SIMULINK model via xpctarget, using the Quatech ESC-100F block.

This setup has been working in 2011a but we're trying to upgrade to 2013b.

When I run in 2013b without the encoder boards powered on (no data to the Quatech card), I get no errors. However, when I run with the encoder boards powered on and sending data, I get the following error:

RTTarget-32 CPU Exception: 000E Error code: 0004
EAX= ...
ESP= ...
DS= ...
CS ...
Code: 8B 41 08 2B 41 04 89 55 FC 79 02 03 C7 8B F7 2B F0

(I didn't include the middle lines because I figure they are not relevant -- I can type them up if they are useful)

I did a google search and came up with the RTTarget-32 CPU Exception code: http://www.on-time.com/rtos-32-docs/rttarget-32/reference-manual/system-functions/rtraisecpuexception.htm

   RTRaiseCPUException(4);  // INTO Overflow

What does this mean? Where exactly is the data overflow happening? Why does this happen in 2013b but not in 2011a? Is there anything I can do to fix this issue?

Thanks!

Answer 1

[Jessica Austin]

Answering my own question: I talked to MATLAB support about this, and I thought I'd post here in case other people had the same issue.

At first they thought that one possible cause might be insufficient stack size on the model thread. They suggested running the following command in MATLAB before compiling the model and then running it:

>>set_param(gcs, ‘TLCOptions’, ‘-axPCModelStackSizeKB=512’)

This command allocates 512 KB stack size for the model thread.

After I did this, I got a different error:

RTTarget-32 CPU Exception: 0010 0.000000

Apparently this was due to a bug in MATLAB 2013b, so they sent me a patch fix the issue. If you're seeing the same thing, you should probably file a support ticket because you might be running into the same thing.